Anne is an active fencer in the Province, who wanted to register armory that was personally meaningful, and had already identified a silver tree as the primary charge.
The illustration of the tree comes from the Pictorial Dictionary of Heraldry, affectionately known as the PicDic, while the comet comes from the Viking Answer Lady’s SVG Images For Heralds collection.
Anne is a female given name in multiple parts of medieval Europe. It is found in the Dictionary of Medieval Names from European Sources at http://dmnes.org/name/Anne as attested to 1485 in Early Modern English, citing Wills and Inventories Illustrative of the History, Manners, Language, Statistics, &c. of the Northern Counties of England, from the Eleventh Century Downwards, volume I of Publications of the Surtees Society. London: J. B. Nicholas and Son, 1835.
Østgarðr is the name of the Crown Province of the East Kingdom, and the byname “of Østgarðr” follows the Branch Name Allowance of SENA PN.1.B.2.f.